double negation

British  

noun

1. logic the principle that a statement is equivalent to the denial of its negation, as it is not the case that John is not here meaning John is here

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Example Sentences

“There a was period of time where double negation ... was the way to negate things, just as it is in French today,” said Plotkin.

From The Guardian

The double negation amounted to affirmation.

From The Guardian

The intensity of the speech called for the double negation.

From Project Gutenberg

There is much significance in the double negation of my text, 'Neither circumcision nor uncircumcision.'

From Project Gutenberg

A double negation occurs in Slavic frequently, without indicating an affirmation; for even if another negation has already taken place, they are accustomed to prefix to the verb the negative particle ne or nje.

From Project Gutenberg